People w/ aftermarket subs in the trunk...
People w/ aftermarket subs in the trunk...
would it be worth it to cut out the hole from the rear seat armrest? i have a couple of 12s in a custom fiberglass enclosure in the spare tire well and was wondering if i would get a lot more sound out of it by cutting out the area in the rear armrest. please post. thanks!
More air into the cab = louder bass.
In fact we HAVE to do this on most mb/bmw/audi's.
Just please dont cut a hole in it and be done..make it look nice
I will be doing the same thing in a few weeks..should have pics
In fact we HAVE to do this on most mb/bmw/audi's.
Just please dont cut a hole in it and be done..make it look nice
I will be doing the same thing in a few weeks..should have pics
The material behind the armrest isn't soundproof. I have a sub mounted on a metal baffle behind the seat that fires right into the back of the armrest. There is no problem with the pressure getting through, I just sealed the rear deck to eliminate the back wave since the sub is free air.
I would do what was suggested and lose the back speakers. Unplug the rear speakers and play your system at your normal level. Then sit in the back seat and listen to how bad the rear speakers sound. Your subs are creating pressure in the trunk that will push the rear speakers that hang in the open space and move at the frequency of the sub base. What you will hear is added to any musical signal the rear speakers would play. This pushes them to their mechanical limit and garantees distortion. Removing the rears gives you 2 large openings for the sound pressure to enter the cabin. The Evo isn't like many Audi and BMW's where the wall behind the back seat is solid sheet metal. I have measured up to 5db increases in output by opening up the rear deck.
I would do what was suggested and lose the back speakers. Unplug the rear speakers and play your system at your normal level. Then sit in the back seat and listen to how bad the rear speakers sound. Your subs are creating pressure in the trunk that will push the rear speakers that hang in the open space and move at the frequency of the sub base. What you will hear is added to any musical signal the rear speakers would play. This pushes them to their mechanical limit and garantees distortion. Removing the rears gives you 2 large openings for the sound pressure to enter the cabin. The Evo isn't like many Audi and BMW's where the wall behind the back seat is solid sheet metal. I have measured up to 5db increases in output by opening up the rear deck.
I just wanted a cubby hole for skis and hockey sticks 
I was thinking of finding one of those cubby holes from a wrecked car, all my other sedans have had this locking type of mechanism as a secondary door.
I was thinking of finding one of those cubby holes from a wrecked car, all my other sedans have had this locking type of mechanism as a secondary door.
Originally Posted by BillAce
The material behind the armrest isn't soundproof. I have a sub mounted on a metal baffle behind the seat that fires right into the back of the armrest. There is no problem with the pressure getting through, I just sealed the rear deck to eliminate the back wave since the sub is free air.
I would do what was suggested and lose the back speakers. Unplug the rear speakers and play your system at your normal level. Then sit in the back seat and listen to how bad the rear speakers sound. Your subs are creating pressure in the trunk that will push the rear speakers that hang in the open space and move at the frequency of the sub base. What you will hear is added to any musical signal the rear speakers would play. This pushes them to their mechanical limit and garantees distortion. Removing the rears gives you 2 large openings for the sound pressure to enter the cabin. The Evo isn't like many Audi and BMW's where the wall behind the back seat is solid sheet metal. I have measured up to 5db increases in output by opening up the rear deck.
I would do what was suggested and lose the back speakers. Unplug the rear speakers and play your system at your normal level. Then sit in the back seat and listen to how bad the rear speakers sound. Your subs are creating pressure in the trunk that will push the rear speakers that hang in the open space and move at the frequency of the sub base. What you will hear is added to any musical signal the rear speakers would play. This pushes them to their mechanical limit and garantees distortion. Removing the rears gives you 2 large openings for the sound pressure to enter the cabin. The Evo isn't like many Audi and BMW's where the wall behind the back seat is solid sheet metal. I have measured up to 5db increases in output by opening up the rear deck.
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Just put good speakers up front. Rear seat passengers will hear just fine. Do you think the guy in the second row of a concert can't hear because someone is sitting in front of him. There are many reflective surfaces in a car and the problem is usually too much sound. Unless your doing a 5.1 system, save the cash and ditch the rears or better yet spend that cash on better speakers and amp for the fronts.
Take the upper middle seatbelt mount off the back deck. There is room to squeeze a 3" port through the hole. I just built a 4th order box that ports through this hole. No more trunk rattles, way more low end bass. The box is a bit bulky but I'm amazed at how low the thing hits now (10" jl w6+500w).. i can snap a picture or two if interested.
rb
rb
That works but most people arern't happy with the trade offs you make with a band pass. (Bigger box, narrow bandwidth, and muddy response). For overall volume I've gained over 8db with a well designed band pass box.
